SECS/GEM Fundamentals

What is a Factory Host

How the Factory Host fits in semiconductor manufacturing, and how it uses SECS/GEM to control and monitor equipment.

Diagram of a Factory Host connected to semiconductor equipment over SECS/GEM, with KodeGEM Intelligence and SecsHost shown in the equipment software context.
A Factory Host sits above the tool and exchanges SECS/GEM messages with equipment control software on the factory floor.

A Factory Host is the factory-side system that talks to semiconductor manufacturing equipment using SECS/GEM. It starts and stops jobs, collects events and alarms, manages recipes, and keeps the tool synchronized with MES and other plant systems.

On the equipment side, Tool Control Software implements the GEM interface so the host can control and monitor the tool. Without a reliable host connection, tools cannot participate in automated fab operations.

You can use SecsHost to emulate a Factory Host while you develop, test, and debug SECS/GEM equipment software.